Dynamo or magneto electric machine



(Model.) 2 Sheets-Sheet 1.

C. E. BALL Dynamo or Magneto-Electric Machine. No. 238,631. Patented March 8,1881.

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C. E. BALL Dynamo orMagneto-Eleotro Machine. No. 238,631. Patented March 8,1881.

INVENTOR/ Wl T NESSES ILPKYiRG. PHOTO-LIYNOGMPHIR, WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

CHARLES E. BALL, OF PHILADELPHIA, PENNSYLVANIA.

DYNAMO OR MAGNETO ELECTRIC MACHINE.

SPECIFICATION forming part of Letters Patent No. 238,631, dated March 8, 1881.

Application tiled November l5, 1880. (Model.)

To all 'whom it may concern:

Be it known that I, CHARLES E. BALL, a citizen of the United States, residing at the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in Dynamo or Magneto Electric Machines, of which the following' is a spccication, reference being had to the accompanying drawings, wherein- Figure l is a plan of a dynamo or magneto electric machine, composed ot' two field-magnets and armatures, constructed and arranged to operate according to my invention. Figs. 2 and 3 are detail transverse vertical sections. Fig. et is a detail longitudinal vertical section of the revolving armatures; and Fig. 5 is au elevation of a dynamo or magneto electric machine of four or more field-magnets with my improvements applied thereto.

My invention has relation to dynamo-electric or magneto-electric machines for generating electrical currents to be used for lighting and other purposes, and has for its object the provision of an apparatus in which the relative arrangement and operation of the parts shall be such that the maximum inducing capacity ofthe field-magnets will be utilized and the resulting currents obtained of corresponding intensity and quantity.

Another object of my invention is to provide a dynamo-electric battery composed of two or more eldmgmerts antLlmilvi-SL' rmatures, wherein the currents induced in the armature-coils may be resolved into a constant current of either polarity or direction withohut 1oss-etlelectricenergyHMIHW--WIM`U` Furthermore, the object of my invention is to produce a dynamo-electric or magneto-electric machine or battery which may be constructed at a comparatively low cost and economically operated, while being productive of the same or equally useful effects as higherpriced or more expensively operated machines.

The inaltineembodying my invention in\ volves a.coiledwannglar armature rotating be-v I use two or more 5 and instead of arranging the armatures between the opposite poles of the same magnet, as is usual, I arrange them to rotate between unlike poles of two or more held-magnets, and preferably in opposite directions. Each of the held-magnets has its poles opposed to two armatures, while, conversely, each armature rotates within the iniiueuce of the opposing poles, resliectively, of two held-magnets, and hence l. Obtain two separate and distinct constant currents from as many armatures. By means of suitable devices for commutating l combine these currents,and hence obtain double the quantity of current or twice the energy heretofore produced.

In the accompanying drawings, A designates the frame-work of my improved dynamoelectric machine, and BNB the held-magnets', which latter may be permanent magnets or electro-magnets, according to the conditions that the apparatus is to subserve.

arrangedLrcspectively, on opjsitensides ot' au axial line uponpwhich the armatures rotate,

'the unlile poles opposing or facing eachother. Y

' AC C are the armatures, consisting ofsoft-iron rings, upon which are wound many convolutions ot' insulated wire, having their ends leading to the insulated collars D `D D D', from which the currents are collected by brushes E E, and thence conducted to wherever required. The wire may either entirely cover the rings or it may be wound iu radial grooves, so as trleave portions ot' the iron exposed, in order that the metal may be brought as close, in revolving, to the poles of the magnets as possible. One of the armatures is designed to revolve from rightto left and the other from left to right, so that their motion, in relation to the like poles ofthe magnets,respectively, will be the same. rlhe result will be the production from each armature of the same currents, the two currents being, therefore, either positive or negative.

To effect the proper revolution of the armaturesI arrangethem ou the same axial line; but one of them I secure to a hollow shaft or arbor, F, encircling and embracing the solid shaft Gr ofthe other, and then gear the two shafts so that the one main or powershaft will rotate the two shafts in opposite directions.

The magnets agevolitheugsual horseshoejorm, and are ICO the armatures with reference to the respective magnetic poles will be the same, and they will produce identical currents. In order to collect the two currents I so adjust the circuits, as shown in Figs. 1,2, and 3, that each armaturecoil shall complete its circuit through the other and follow the path ot' its current. There will be, therefore, a complete circuit through the machine when the connecting-lines are closed, and the energy ot' the current will he, equal to the coupled energies of two currents ot' like energy.

When it is not required to use the full electric power ot' the apparatus the current may be taken from one only otA the armatures, the circuit being completed through the two brushes on opposite sides, respectively, ot' said armature.

Instead ot' coupling thel two armatures as shown, they may be so coupled as to give alternating currents in opposite directions. So,

too, by means ot' suitable arrangements ot' gearing, the armatures may be both rotated in the same direction, in which case the currents will bein opposite directions. Commutators will he so arranged that the currents ot' maximum intensity or quantity, but ot' opposite polarities, will circulate alternately. Such currents may he used t'or electric-lighting purpose where it is oi" advantage to alternate the polarities of the electrodes.

Should it be desired to rectity or convertthe currents generated b v revolving the armatures in the same direction, commutators will be necessary, so as to direct the opposing' or un like currents in the samepa-th.

The held-magnets may, it' electro-magnets are used, be charged by the current induced in the0 armatures.

What I claim as my invention is as follows:

l. In a dynamo or magneto electricmachine Or battery, the combination, with two or more horseshoe tieldanagnets, on opposite sides, respectively, ot` an axial line, and with the op- By this arrangement the relative rotation ot' t posing poles facing each other respectively, oi

two or more coiled armatures, arranged to revolve on said axial line, each between the unlike and opposing poles ot' two separate inagnets, substantially as shown and described.

2. The combination, in a dynamo ormagneto electric machine, ot' two or more revolving coiled armatures, and two or more iieldmag nets otl horseshoe t'orm or character, on opposite sides ot and parallel with the axis ot' the armature, each of said armaturesbeingwithin the inductive iield or iniiuence of the unlike poles ot' two or more magnets, so that when the armatures are revolved they will operate in identical magnetic spheres and generate identical currents, substantially as described.

3. ln a dynamo ormagneto electric machine, the combination7 with two or more field-magnets arranged, respectively, on opposite sides ot' an axial line, so that the north pole o't'one shall oppose or i'ace the south pole ot' the other, and vice versa, ot' two or more armatures arranged between the opposing poles ot the two magnets, respectively, and provided with suitable means for rotating in opposite directions simultaneously, so as to generate currents ot'like polarity and energy.

fi. Ina dynamo or magnetoelectric machine in which two or more armatures rotate within the inductive influence ot' two or more horseshoe -magnets whose unlike poles oppose each other, respectively, as set t'orth,the combination and arrangement otl circuits and commutators, substantially as shown and described, whereby thecurrents generated inthe two armatures will both i'ollow the same path, substantially as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand this 16th day Ot' November, 186i).

GHZ-IS. E. BALL.

\Vitnesses:

SMIL. J. VAN S'rAvoREN, Giras. F. VAN HORN. 

